RectorSeal 3.75 in. Duct Width Coupler in Brown

Slimduct professional grade construction offers strength and longevity everyone can appreciate. Available in 3 sizes, Slimduct will accommodate single and multiple exposed line sets with 3 color choices and can compliment neutral or painted facades. A complete line of fittings assures each installation can be finished both quickly and professionally.|Water resistant PVC|UV stabilized|Fire resistant and tested to over 2000 hours|Available in 3 colors